Results 21 to 30 of about 76,875 (253)

Temperature-dependence of Weibel-Palade body exocytosis and cell surface dispersal of von Willebrand factor and its propolypeptide.

open access: yesPLoS ONE, 2011
BackgroundWeibel-Palade bodies (WPB) are endothelial cell (EC) specific secretory organelles containing Von Willebrand factor (VWF). The temperature-dependence of Ca(2+)-driven WPB exocytosis is not known, although indirect evidence suggests that WPB ...
Lindsay Hewlett   +6 more
doaj   +1 more source

Munc13 mediates klotho-inhibitable diacylglycerol-stimulated exocytotic insertion of pre-docked TRPC6 vesicles.

open access: yesPLoS ONE, 2020
α-Klotho is a type 1 transmembrane protein that exhibits aging suppression function. The large amino-terminal extracellular domain of α-klotho is shed as soluble klotho (sKlotho) and functions as a circulating cardioprotective hormone.
Jian Xie   +4 more
doaj   +1 more source

Anaphylactic Degranulation of Mast Cells: Focus on Compound Exocytosis

open access: yesJournal of Immunology Research, 2019
Anaphylaxis is a notorious type 2 immune response which may result in a systemic response and lead to death. A precondition for the unfolding of the anaphylactic shock is the secretion of inflammatory mediators from mast cells in response to an allergen,
Ofir Klein, Ronit Sagi-Eisenberg
doaj   +1 more source

A Novel Role of the TRPM4 Ion Channel in Exocytosis

open access: yesCells, 2022
Under physiological conditions, the widely expressed calcium-activated TRPM4 channel conducts sodium into cells. This sodium influx depolarizes the plasma membrane and reduces the driving force for calcium entry.
Paulina Stokłosa   +2 more
doaj   +1 more source

The dynamics of somatic exocytosis in monoaminergic neurons

open access: yesFrontiers in Physiology, 2012
Some monoaminergic neurons can release neurotransmitters by exocytosis from their cell bodies. The amount of monoamine released by somatic exocytosis can be comparable to that released by synaptic exocytosis, though neither the underlying mechanisms nor ...
Bidyut eSarkar   +6 more
doaj   +1 more source

Network-based insights into miRNA regulation of β-cell insulin secretion in type 2 diabetes

open access: yesiScience
Summary: Increasing evidence suggests that microRNAs (miRNAs) contribute to pancreatic β-cell compensation during type 2 diabetes (T2D) pathogenesis. To examine miRNA-mRNA interactions in human islets and their roles in β-cell insulin secretion and T2D ...
Elaine Cowan   +7 more
doaj   +1 more source

Voltage-Dependent Calcium Channels at the Plasma Membrane, but Not Vesicular Channels, Couple Exocytosis to Endocytosis

open access: yesCell Reports, 2012
Although calcium influx triggers endocytosis at many synapses and non-neuronal secretory cells, the identity of the calcium channel is unclear. The plasma membrane voltage-dependent calcium channel (VDCC) is a candidate, and it was recently proposed that
Lei Xue   +7 more
doaj   +1 more source

Calcium current inactivation rather than pool depletion explains reduced exocytotic rate with prolonged stimulation in insulin-secreting INS-1 832/13 cells.

open access: yesPLoS ONE, 2014
Impairment in beta-cell exocytosis is associated with reduced insulin secretion and diabetes. Here we aimed to investigate the dynamics of Ca2+-dependent insulin exocytosis with respect to pool depletion and Ca2+-current inactivation.
Morten Gram Pedersen   +4 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Human pancreatic islet miRNA-mRNA networks of altered miRNAs due to glycemic status

open access: yesiScience, 2022
Summary: MicroRNAs (miRNAs) are short non-coding RNAs that regulate gene expression via mRNA targeting, playing important roles in the pancreatic islets. We aimed to identify molecular pathways and genomic regulatory regions associated with altered miRNA
Alexandros Karagiannopoulos   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy